Substantial undocumented infection facilitates the rapid dissemination of novel coronavirus (SARS-CoV-2) View ORCID ProfileRuiyun Li1,*, View ORCID ProfileSen Pei2,*,†, View ORCID ProfileBin Chen3,*, View ORCID ProfileYimeng Song4, Tao Zhang5, View ORCID ProfileWan Yang6, View ORCID ProfileJeffrey Shaman2,†1MRC Centre for Global Infectious Disease Analysis, Department of Infectious Disease Epidemi